Barzillai was quite old, eighty years of age, and since he was a very wealthy man, he had provided for the king while he stayed in Mahanaim.
Cross References
2 Samuel 17:27When David came to Mahanaim, he was met by Shobi son of Nahash from Rabbah of the Ammonites, Machir son of Ammiel from Lo-debar, and Barzillai the Gileadite from Rogelim.
2 Samuel 19:33The king said to Barzillai, "Cross over with me, and I will provide for you at my side in Jerusalem."
Treasury of Scripture
Now Barzillai was a very aged man, even fourscore years old: and he had provided the king of sustenance while he lay at Mahanaim; for he was a very great man.
fourscore
Genesis 5:27
And all the days of Methuselah were nine hundred sixty and nine years: and he died.
Genesis 9:29
And all the days of Noah were nine hundred and fifty years: and he died.
Genesis 25:7
And these are the days of the years of Abraham's life which he lived, an hundred threescore and fifteen years.
provided
2 Samuel 17:27
And it came to pass, when David was come to Mahanaim, that Shobi the son of Nahash of Rabbah of the children of Ammon, and Machir the son of Ammiel of Lodebar, and Barzillai the Gileadite of Rogelim,
for he was
1 Samuel 25:2
And there was a man in Maon, whose possessions were in Carmel; and the man was very great, and he had three thousand sheep, and a thousand goats: and he was shearing his sheep in Carmel.
Job 1:3
His substance also was seven thousand sheep, and three thousand camels, and five hundred yoke of oxen, and five hundred she asses, and a very great household; so that this man was the greatest of all the men of the east.